Sludge removal

[woodlandfarms]

Well not completely tractor related, but as my Diesel is air cooled, I am looking forward to the answer....

I run synthetic on everything, usually from near the beginning of its life. My wife has a Mazda CX-7 (please never buy one). I have been reading that modern cars with turbos tend to blow the turbo's, and they are finding out it is due to sludge buildup going to the turbo. apparently on a number of new cars, the oil passages have been re-routed through hot spots. Apparently you are supposed to idle a turbo for 3 minutes before shutting it down (have yet to find verification of this but in a way it makes sense).

Anyway, I am debating dumping a can of tranny fluid in before my next oil change on both the Mazda and the PT.

Any thoughts on this? Any better ideas?

 

[DEWFPO]

If your running synthetic oil in these turbo'd engines and change the oil regularly, you likely won't have any sludging issues. Synthetic oil has a higher vaporization and coking temp than regular oil and acts as a sludge cleaner in a dirty engine. I've not seen any sludging issues in vehicles that used synthetic oils and were maintained properly.

DEWFPO

 

[PioneerMan]

I'm not an expert. But IMHO cool down and sludge are two different issues. Idling a turbo, especially when run hard, allows the oil to flow and cool, preventing coking the oil I think. I learned about it with light duty trucks. Much more of a concern than sludge. But also in my opinion, unless you are running your cx-7 on a track, I would be surprised if it needed that long of a cool down. But maybe those turbos actually run more than a pickups. ???

 

[PioneerMan]

Oh and I am not so quick to 'add stuff' to fix problems. A good example is in the old days two stroke oil in a tank of diesel was probably a good thing, helped lubricity. But modern engines are so tight and computer controlled that I wouldn't advocate that.
Modern synthetic is very good i think.
Also my 2 cents.